EP2139376B1 - Camera de diagnostic et element rapporte pour la realisation d'une telle camera - Google Patents

Camera de diagnostic et element rapporte pour la realisation d'une telle camera Download PDF

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Publication number
EP2139376B1
EP2139376B1 EP08716438A EP08716438A EP2139376B1 EP 2139376 B1 EP2139376 B1 EP 2139376B1 EP 08716438 A EP08716438 A EP 08716438A EP 08716438 A EP08716438 A EP 08716438A EP 2139376 B1 EP2139376 B1 EP 2139376B1
Authority
EP
European Patent Office
Prior art keywords
spacer
diagnostic camera
preferentially
spacer portion
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP08716438A
Other languages
German (de)
English (en)
Other versions
EP2139376A1 (fr
Inventor
Michael Thoms
Peter Lais
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Duerr Dental SE
Original Assignee
Duerr Dental SE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Duerr Dental SE filed Critical Duerr Dental SE
Priority to EP11004529A priority Critical patent/EP2389855A1/fr
Publication of EP2139376A1 publication Critical patent/EP2139376A1/fr
Application granted granted Critical
Publication of EP2139376B1 publication Critical patent/EP2139376B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/24—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressors; Instruments for opening or keeping open the mouth
    • A61B1/247—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressors; Instruments for opening or keeping open the mouth with means for viewing areas outside the direct line of sight, e.g. dentists' mirrors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00071—Insertion part of the endoscope body
    • A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
    • A61B1/00089—Hoods
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00071—Insertion part of the endoscope body
    • A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
    • A61B1/00096—Optical elements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00071—Insertion part of the endoscope body
    • A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
    • A61B1/00101—Insertion part of the endoscope body characterised by distal tip features the distal tip features being detachable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00163—Optical arrangements
    • A61B1/00174—Optical arrangements characterised by the viewing angles
    • A61B1/00177—Optical arrangements characterised by the viewing angles for 90 degrees side-viewing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
    • A61B1/05—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
    • A61B1/0661—Endoscope light sources
    • A61B1/0676—Endoscope light sources at distal tip of an endoscope
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
    • A61B1/0661—Endoscope light sources
    • A61B1/0684—Endoscope light sources using light emitting diodes [LED]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6844—Monitoring or controlling distance between sensor and tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
    • A61B5/6886—Monitoring or controlling distance between sensor and tissue
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G03B15/03—Combinations of cameras with lighting apparatus; Flash units
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/17—Bodies with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera

Definitions

  • the invention relates to a diagnostic camera according to the preamble of claim 1 and a spacer attachment for realizing such according to the preamble of claim 13.
  • Such a known diagnostic camera and such a spacer attachment is the US 2005/0003323 A1 see, in particular the local figure 43 and associated text.
  • Other medical and dental diagnostic cameras are disclosed in US patent application Ser DE 198 58 551 A1 , of the US 5 051 823 A , of the EP 1 529 485 A , of the DE 10 2004 0266630 A1 and the US 2004/077926 A1 ,
  • Known diagnostic camera are initially provided for the remote viewing of a patient's oral cavity. Your case has a gripping portion and an associated, slim head area.
  • the gripping portion is provided for gripping and guiding the diagnostic camera by a user.
  • the head portion mounted in extension of the gripping portion includes a camera unit having optical and electronic components such as a lens optic and an imager.
  • a greatly enlargeable image of the oral cavity or the teeth to be considered can be recorded and forwarded in the form of electrical signals to a playback device, for example a monitor. Due to the working conditions (stooped posture, poor direct visual contact with the observatory), it is difficult to record a sharp and still, not blurred diagnostic camera image of the oral cavity or teeth in the oral cavity.
  • spacers gives a quieter picture and good image sharpness.
  • the spacer and the housing of the camera are detachably connected via complementary narrow annular projections of spacer and housing. Attaching the spacer to the camera body therefore requires tact.
  • the spacer may also become detached from the head area during use of the diagnostic camera and fall into the oral cavity of the patient.
  • the present invention is intended to further develop a diagnostic camera and a spacer of the type mentioned at the beginning in such a way that a reliable connection between the spacer and the camera is obtained.
  • the diagnostic camera according to the invention has at least one dimensionally stable spacer with a free end portion, which is arranged at least predominantly outside the field of view.
  • a free end section By means of the free end section, an object region determined by the optical components of the diagnostic camera, ie a position within which an object is sharply imaged by the diagnostic camera, can be visualized and / or tactually experienced by the user when using the diagnostic camera.
  • the user can thereby use the diagnostic camera at a correct distance to the object to be recorded, in particular a Position the tooth in the oral cavity without having to look at the typically patient-facing monitor on which the image of the subject is displayed.
  • the spacer is preferably designed such that its free end is arranged in the object plane of the diagnostic camera.
  • the free end portion of the spacer also provides a bearing surface, e.g. can be placed on the surface of the male tooth, whereby a stabilization of the diagnostic camera image taken by the diagnostic camera is obtained, wherein the object is located simultaneously in the object plane of the diagnostic camera.
  • a diagnostic camera has a (preferably 90 degrees) tilted viewing direction with respect to a central longitudinal axis of the gripping portion of the housing. This is the free end portion of the likewise 90 degrees angled channel, the spacer and coupling portion form, at least almost in the object plane.
  • a free end portion of the spacer is designed as an at least substantially circumferential sleeve and thus gives a support surface.
  • the free end portion is designed as a closed, circumferential wall, so that a support of the diagnostic camera on the object to be imaged is ensured regardless of the orientation of the gripping portion of the camera body.
  • the inside of the channel can according to claim 6 with respect to the otherwise smooth running surfaces of the attachment have an increased roughness.
  • the inside of the channel with an average roughness R z of 1 to 40 microns, preferably from 2um to 10um, more preferably less than 4 microns provided.
  • grooves may be provided on the inside of the channel, you preferably in the circumferential direction, orthogonal to the viewing direction. The roughness causes a diffuse scattering of incident light rays and thus enables a reflection reduction.
  • the diagnostic camera according to claim 7 made possible by the preferably conical or pyramidal extension to the free end of a compact design of the Abstandshalt.ers without thereby limiting the field of view of the diagnostic camera.
  • the article according to claim 9 is made of a sterilizable plastic, for example a polypropylene. This ensures reusability in compliance with the sanitation and / or sterilization guidelines applicable to medical and dental instruments.
  • the diagnostic camera can be realized with a low weight.
  • the diagnostic camera according to claim 10 is designed such that the camera body and the Koppelabschznitt have cooperating locking means. This can be realized on the diagnostic camera in a simple manner, a releasable attachment and reliable fixing of the spacer attachment.
  • a spacer attachment according to claim 13 and dependent claims dependent therefrom makes it possible to obtain the above-mentioned advantages with diagnostic cameras already in the field.
  • a diagnostic camera is thus obtained (ex factory or by retrofitting), which allows the diagnostic camera to be placed and supported on the object to be recorded.
  • a low-blur or shake-free image of the object can be achieved.
  • a secure, preferably positive and therefore precise and secure hold of the spacer attachment is guaranteed at the head of the diagnostic camera in addition to a low production price.
  • the elasticity properties of the plastic material make it possible to prevent injuries to the To avoid gums or the oral mucosa even with thin-walled design of the spacer attachment, since no hard edges rest on the tooth or come into contact with the gum.
  • a dental diagnostic camera 10 which has a gripping portion 12 and a substantially cone-section-shaped, mounted in extension of the gripping portion 12 head portion 14.
  • the dental diagnostic camera 10 At a remote from the head portion 14, not shown, the rear end of the gripping portion 12, the dental diagnostic camera 10 on a cable, not shown, which is intended for the provision of electrical energy and in particular for the transmission of the generated by the dental diagnostic camera 10 electrical image signals.
  • the image signals are generated by a camera unit 16 integrated in the head area 14.
  • the camera unit 16 is composed as in Fig. 3 1, a viewing direction 22 of the diagnostic camera 10 is aligned substantially orthogonal to a central longitudinal axis 24 of the gripping portion 21 and the head region 14. This ensures a particularly ergonomic handling of the diagnostic camera 10, which is particularly advantageous for viewing tooth surfaces in the cramped oral cavity.
  • a cap 40 which facilitates the maintenance of a certain distance between the diagnostic camera and the object to be viewed and will be described below with reference to several embodiments.
  • an illuminated object 41 such as a tooth in a mouth of a patient
  • an image sensor 20 is z.
  • B a CCD (Charge Coupled Device) and has a photosensitive sensor surface, which accomplishes a pixel-by-pixel conversion of incident light beams into electrical signals.
  • the electrical output signals of the image sensor 20 are then passed via the cable, not shown, to an image processing unit, also not shown, which controls the representation of the object 41 on a monitor.
  • the optical system 18 has a transparent window 28 inserted tightly into the wall of the head region 16, a deflection mirror 26 and a lens system 30 with two lenses 31, 33 on.
  • the transparent window 28 is tightly glued into the head region 14 in order to be able to accommodate the camera unit 16 in the sleeve-shaped head region 14, which forms part of the camera housing, in a moisture-proof manner.
  • the deflection mirror 26 provides a 90 degree deflection of the light rays, i. the object beams emanating from the object 41.
  • a light beam emanating exemplary from the object 41 can, after being deflected by the deflecting mirror 26, run parallel to the central longitudinal axis 24 and impinges perpendicularly on the sensor surface of the image recorder 20.
  • the viewing direction 22 of the camera unit 16 is thus aligned by the action of the deflecting mirror 26 orthogonal to the central longitudinal axis 24 of the diagnostic camera 10.
  • the image angle ⁇ that can be detected by the image recorder 20 is essentially determined by the lens system 30.
  • the lens system 30 determines a depth of focus or object area 36 within which an object is sharply imaged on the imager 20.
  • an object plane 38 identifies the plane in which an object is imaged in maximum sharpness.
  • the angle of view ⁇ may optionally be limited by the size of the window 28, by the size of the deflection mirror 26 or by a visual field stop (not shown) provided in the optical beam path or by the attachment 40.
  • Adjacent to the deflection mirror 26 is designed as a white light LED light source 32 is provided, which serves to illuminate the object to be imaged.
  • the main emission direction 34 of the light source 32 extends at least in the Essentially parallel to the viewing direction 22 of the camera unit 16.
  • the attachment 40 made of a sterilizable plastic, for example polypropylene, has a coupling portion 42 designed as a connecting means and a spacer portion 44. As in the 4 to 6 Shown in more detail, wall sections of coupling section 42 and spacer section 44 define an opening 45 into which the head region 16 can be inserted in a form-fitting manner.
  • the coupling portion 42 and the spacer portion 44 are both sleeve-shaped and together form a rectangular angled channel.
  • the length of the channel in the direction of the central longitudinal axis 24 is in the illustrated embodiments of the article 40 according to the Fig. 3 to 6 pretty short.
  • the channel can also be significantly longer in the region of the coupling section in order to achieve greater axial coverage with the head region 16.
  • the coupling section 42 is matched to the cross section of the head region 14 in such a way that a non-positive coupling of the attachment 40 to the head region 14 is obtained.
  • the free inner cross section of the coupling portion 42 is selected slightly smaller than the outer cross section of the head portion 14, so that when attaching the attachment 40 on the head portion 14, an elastic deformation of the coupling portion 42 occurs. This elastic deformation poses the friction force necessary for the desired frictional attachment of the attachment 40 to the diagnostic camera 10 ready.
  • the coupling portion 42 is provided with an inwardly projecting latching lug 56 which engages elastically in a groove provided in the head portion 14 and thus ensures a reliable locking of the attachment 40 on the diagnostic camera 10.
  • the sleeve-shaped spacer section 44 has a viewing direction 22 of the camera unit 16 via the window 28 projecting free end portion 46 which terminates in the object plane 38, this is at least closely adjacent.
  • the free end portion 46 indicates to the user how close the diagnostic camera 10 must be to the object 41 to provide a clear image.
  • the free end portion 46 When the free end portion 46 is placed on a surface of an object 41, the object surface automatically lies in the object area 36 of the diagnostic camera 10.
  • the diagnostic camera 10 Due to the abutment of the free end section 46 on the object surface, a position stabilization of the diagnostic camera 10 is also achieved. This makes it easier to choose the right image detail. On the other hand, dithering movements of the user, which could occur without placing the free end section 46 on the object, are reduced or completely avoided. Thus, the image taken by the diagnostic camera 10 is quiet and stable.
  • the Indian Fig. 4 shown attachment 40 has a box-like structure.
  • a side wall of the cap 40 is completely recessed, whereby one of the sleeve-shaped free end portion 46 bounded window 48 is formed.
  • the coupling 45 serving openings is provided which has a substantially circular edge contour with a parallel to the end face of the end portion 46 aligned flattening 50.
  • the free end portion 46 is at the top 40 according to the Fig. 4 5 mm away from the flattening 50 so that the distance between the object 41 and the window 28 is also about 5 mm and the free end portion 46 is at least almost in the object plane 38.
  • a circumferential roughened surface 54 is provided on an inner surface of the attachment 40.
  • the roughening can be achieved, for example, by a surface treatment provided in the injection mold for the attachment 40, for example by sandblasting, and is molded onto the attachment 40 during the injection process.
  • the roughened surface 54 causes light rays emanating from the light source 32 or the object to diffuse diffusely on the inner surface of the spacer portion 44. Thus, these light beams can not be scattered as scattered light beams unhindered into the optical system 18 of the camera unit 16, whereby an improvement in the image quality of the diagnostic camera 10 can be realized.
  • the inner surface of the spacer portion 44 may absorb light, in particular be made black, e.g. B. be painted black.
  • the free end portion 46 is located approximately 10 mm away from the flat 50 and is partially interrupted by a recess 58.
  • the recess 58 which faces the user of the diagnostic camera 10, allows a direct view of the surface to be recorded.
  • the free end portion 46 is located approximately 18mm from the flattening 50 and is located at the end of a substantially truncated pyramid shaped extension 52 of the box-shaped attachment 40th
  • the extension 52 With the truncated pyramidal design of the extension 52 can be achieved that the article 40 is compact and can be easily placed on an object to be viewed.
  • the opening angle of the extension 52 ie the angle enclosed between the respective oppositely arranged pyramidal surfaces, is adapted to the image angle ⁇ of the camera unit 16 in such a way that marginal rays which can still be detected by the image recorder 20 extend essentially parallel to the pyramidal surfaces of the extension 52 ,
  • the attachment 40 does not act as a limitation for the image taken by the camera unit 16.
  • FIG. 7 is formed on the head portion 16, a spacer rod 44 whose axis is perpendicular to the axis of gripping portion 14 and head portion 16 and laterally outside the field of view or is closely adjacent to the edge of the field of view.
  • the spacer bar 44 may be releasably inserted into a recess of the head portion 16, which is advantageous in terms of manufacture, cleaning and sterilization of the diagnostic camera.
  • the diagnostic camera described above may also be used to view other poorly accessible body parts of humans and animals in human medicine or veterinary medicine. It can also be used in materials and product testing to control poorly accessible surface areas.
  • the free end portion 46 of the spacer 40 may be sealed by a transparent end plate 55, as in FIG FIG. 4 indicated.
  • a transparent end plate 55 This provides a contact surface for tissue to be considered and thus ensures a precise positioning of the same in the object plane. At the same time, bulges of the tissue are prevented. Also, so the free end of the spacer is protected against ingress of contaminants and germs.
  • the smooth outer surface at the end of the spacer 40 facilitates its sterilization and disinfection.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Medical Informatics (AREA)
  • Veterinary Medicine (AREA)
  • Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biophysics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Optics & Photonics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • General Physics & Mathematics (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Endoscopes (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Claims (24)

  1. Caméra de diagnostic, en particulier pour applications médicales et dentaires, avec un boîtier (14, 16), une optique (18) et un capteur d'images (20), qui sont logés dans le boîtier (14, 16), sachant que le boîtier (14, 16) porte du côté de l'objet un segment d'écarteur (44), qui est disposé sur un segment de couplage (42), qui est disposé d'une manière détachable sur le boîtier (14, 16), de préférence sur une zone de tête (14) de ce dernier, et sachant que le segment d'écarteur (44) et le segment de couplage (42) sont en réalisés en forme de douille, caractérisé en ce que le segment d'écarteur (44) et le segment de couplage (42) délimitent ensemble un canal traversant, coudé de 90 degrés.
  2. Caméra de diagnostic selon la revendication 1, caractérisé en ce qu'une section terminale (46) du segment d'écarteur (44) présente une surface d'appui, qui se tient pour l'essentiel de façon perpendiculaire par rapport à une ligne de visée (42) de l'optique (18).
  3. Caméra de diagnostic selon la revendication 1 ou 2, caractérisé en ce qu'une section terminale libre (46) du segment d'écarteur (44) est réalisée tout au moins pour l'essentiel en tant que douille périphérique, de préférence close dans la direction périphérique.
  4. Caméra de diagnostic selon l'une quelconque des revendications précédentes, caractérisé en ce que le segment de couplage (42) est réalisé en tant que douille close.
  5. Caméra de diagnostic selon l'une quelconque des revendications précédentes, caractérisé en ce que le canal est pourvu, sur une face intérieure, tout au moins dans la zone du segment d'écarteur (44) d'une surface absorbant ou dispersant la lumière (54).
  6. Caméra de diagnostic selon la revendication 5, caractérisé en ce que le canal est pourvu, dans la zone du segment d'écarteur (44), sur la face intérieure, d'une rugosité accrue, de préférence de rainures.
  7. Caméra de diagnostic selon l'une quelconque des revendications précédentes, caractérisé en ce que le segment d'écarteur (44) s'élargit en direction de l'extrémité libre, de préférence sous forme conique ou pyramidale.
  8. Caméra de diagnostic selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le segment de couplage (42) et le segment d'écarteur (44) sont fabriqués d'une seule pièce, en particulier dans un procédé de moulage par injection.
  9. Caméra de diagnostic selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le segment d'écarteur (44) et de préférence aussi les pièces du segment de couplage (42), reliées d'une seule pièce à celui-ci, et encore une fois de préférence aussi le boîtier (14, 16) sont fabriqués à partir d'une matière synthétique stérilisable et/ou désinfectable, par exemple à partir d'un polypropylène
  10. Caméra de diagnostic selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le segment de couplage (42) est adapté à la zone de tête (14) du boîtier (14, 16) de telle sorte qu'il est fixé à la zone de tête (14) par conjugaison de formes dans une position de travail surélevée.
  11. Caméra de diagnostic selon l'une quelconque des revendications 2 à 10, caractérisé en ce que la section terminale libre (46) porte une plaque terminale transparente (55).
  12. Caméra de diagnostic selon la revendication 11 en relation avec la revendication 3, caractérisé en ce que la plaque terminale (55) est reliée de manière étanche à la douille.
  13. Élément rapporté de segment d'écartement pour une caméra de diagnostic, en particulier pour applications médicales et dentaires, qui présente un boîtier (14, 16), une optique (18) et un capteur d'images (20), qui sont logés dans le boîtier (14, 16), qui présente un segment d'écarteur (44), qui est disposé sur un segment de couplage (42), qui est disposé d'une manière détachable sur le boîtier (14, 16), de préférence à une zone de tête (14) du boîtier, et sachant que l'écarter (44) et le segment de couplage (42) sont en réalisés en forme de douille, caractérisé en ce que le segment d'écarteur (44) et le segment de couplage (42) délimitent ensemble un canal traversant, coudé de 90 degrés.
  14. Élément rapporté de segment d'écarteur selon la revendication 13, caractérisé en ce qu'une section terminale libre (46) du segment d'écarteur (44) présente une surface d'appui, qui se tient pour l'essentiel de façon perpendiculaire par rapport à un axe longitudinal du segment d'écarteur (44).
  15. Élément rapporté de segment d'écarteur selon la revendication 13 ou 14, caractérisé en ce qu'une section terminale libre (46) du segment d'écarteur (44) est réalisée tout au moins pour l'essentiel en tant que douille périphérique, de préférence close dans la direction périphérique.
  16. Élément rapporté de segment d'écarteur selon l'une quelconque des revendications 13 à 15, caractérisé en ce que le segment de couplage (42) est réalisé tout au moins pour l'essentiel en tant que douille périphérique, de préférence close.
  17. Élément rapporté de segment d'écarteur selon l'une quelconque des revendications 13 à 16, caractérisé en ce que le canal est pourvu, sur une face intérieure, tout au moins, dans la zone du segment d'écarteur (44), d'une surface absorbant ou dispersant la lumière (54).
  18. Élément rapporté de segment d'écarteur selon la revendication 17, caractérisé en ce que le canal est pourvu, dans la zone du segment d'écarteur (44), sur la face intérieure, d'une rugosité accrue, de préférence de rainures.
  19. Élément rapporté de segment d'écarteur selon l'une quelconque des revendications 13 à 18, caractérisé en ce que le segment d'écarteur (44) s'élargit en direction de l'extrémité libre, de préférence sous forme conique ou pyramidale.
  20. Élément rapporté de segment d'écarteur selon l'une quelconque des revendications 13 à 19, caractérisé en ce que le segment de couplage (42) et le segment d'écarteur (44) sont fabriqués d'une seule pièce, en particulier dans le procédé de moulage par injection.
  21. Élément rapporté de segment d'écarteur selon l'une quelconque des revendications 13 à 20, caractérisé en ce que le segment d'écarteur (44) et de préférence aussi les pièces du segment de couplage (42), reliées d'une seule pièce à celui-ci, sont fabriqués à partir d'une manière synthétique stérilisable et/ou désinfectable, par exemple en polypropylène.
  22. Élément rapporté de segment d'écarteur selon l'une quelconque des revendications 13 à 21, caractérisé en ce que le segment de couplage (42) est adapté dans la zone de tête (14) du boîtier (14, 16) de telle sorte qu'il est fixé sur la zone de tête (14) par conjugaison de formes dans une position de travail surélevée.
  23. Élément rapporté de segment d'écarteur selon l'une quelconque des revendications 14 à 22, caractérisé en ce que la section terminale libre (46) porte une plaque terminale transparente (55).
  24. Élément rapporté de segment d'écarteur selon la revendication 23 en relation avec la revendication 15, caractérisé en ce que la plaque terminale (55) est reliée de manière étanche à la douille.
EP08716438A 2007-03-16 2008-03-11 Camera de diagnostic et element rapporte pour la realisation d'une telle camera Active EP2139376B1 (fr)

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DE102007013355A DE102007013355A1 (de) 2007-03-16 2007-03-16 Diagnosekamera sowie Aufsatz zur Realisierung einer solchen
PCT/EP2008/001931 WO2008113493A1 (fr) 2007-03-16 2008-03-11 Caméra de diagnostic et élément rapporté pour la réalisation d'une telle caméra

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WO2008113493A1 (fr) 2008-09-25
EA017088B1 (ru) 2012-09-28
ATE542469T1 (de) 2012-02-15
EP2389855A1 (fr) 2011-11-30
EA200901172A1 (ru) 2010-04-30
US20100238279A1 (en) 2010-09-23
EP2139376A1 (fr) 2010-01-06
DE102007013355A1 (de) 2008-09-18
CN101677757A (zh) 2010-03-24
CA2691558A1 (fr) 2008-09-25
ES2380841T3 (es) 2012-05-18
JP2010521202A (ja) 2010-06-24
DE202008017523U1 (de) 2009-11-26

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